A person with knowledge of Nelson's surgery told The Associated Press it was hip. The person spoke on condition of anonymity because Packers coach Mike McCarthy did not specify what part of the body was operated on.
McCarthy said Wednesday the recovery period could take six to eight weeks.
The surgery appears to be a minor procedure; McCarthy said it was to address something his No. 1 receiver felt needed cleaning up.
Offseason workouts for the Packers can begin on April 20.
Nelson had a career-high 98 catches and 1,519 yards receiving to go with 13 touchdowns as the top target for Aaron Rodgers during the quarterback's MVP campaign.
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